1,721,069 research outputs found
le industrie dell' Intergalciale Riss-Wurm del terrazzo fluviale di Erbarella (Jesi, Ancona)
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Il movimento gravitativo profondo di Craco (Basilicata Ionica).
No full textThe Craco ridge (Matera, Southern Italy) experienced repeated landslide movements, particularly along the southwestern slope, starting
from the end of the year 1959. The Craco village, located at the top of the ridge, was almost completely abandoned between 1965
and 1980 because of protracted landslide activity. The ridge is oriented NW-SE and is located at the most external thrust front of the
Southern Apennines. A geological and geomorphological survey has been performed in the area that extends between the Salandrella
and Bruscata creeks. Detailed mapping has been used to show the relationships between landscape evolution and the various
landforms in the frontal part of a recent mountain belt. Furthermore, several exposures document the relationships between strongly
deformed tectonic units and the Pliocene deposits, composed of clays, sandstones and conglomerates, that sedimented during the
late deformational stages of the mountain belt (Balduzzi et alii, 1982; Sella et alii, 1988; Pieri et alii, 1997; Bentivenga et alii, 2003). The
area underwent generalised uplift since the beginning of Middle Pleistocene, as shown by the altitude of the terraced deposits of the
same age, all around the Taranto Gulf (Bentivenga et al., 2004). Interaction between uplift and quaternary climate changes led to the
deposition of terraced alluvial units during the late Middle-Late Pleistocene and to the deepening of the valleys that were filled by minor
aggradational deposits during the Holocene. The detailed geomorphological map is useful to understand the importance of the gravitational
movements in shaping the present landscape. A relationship between the morphological sequences and the deposits responsible
for the landscape evolution has been defined. The slopes of the Craco ridge have been shaped by streams, badland erosional processes,
and, more significantly, by huge landslides, that affected all the oucropping lithologies. Multitemporal analysis has been used
to show the evolution of the gravitational movements during the last 50 years. In this paper we suggest that landslides represent the
reactivation of a deep-seated gravitational slope deformation. Furthermore, we propose that evidence coming from studies of
Quaternary geology and geomorphology should be taken into account to analise huge gravitational movements, a relevant topic in risk
assessment still poorly investigated in the Italian territory
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
“Comportamento di alcuni indici epatofunzionali (TM ed S di BSF, LM di Galattoso, Flusso epatico sinusoidale) nella Sindrome di Gilbert e loro influenzamento da fenobarbital"
No full textIl Paleolitico inferiore nella Lombardia Orientale, nel Veneto, nell'Emilia Romagna e nelle Marche
No full textTerraced marine and fluvial deposits along the lower Agri River Valley (Lucanian Ionian coast – Southern Italy).
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Le industrie del Paleolitico inferiore e medio quali indicatori cronologici per i depositi pleistocenici della Val Padana e delle Marche
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